Childrens Illustrated Encyclopedia

COMPUTERS 139 HOW COMPUTERS WORK A computer converts everything it handles, such as letters of the alphabet, into numbers. The n ...

140 THE POWER TO MAKE LAWS in the United States rests with Congress, the legislative branch of the federal government. Establish ...

141 Conquistadors HERNANDO CORTÉS In 1519, Cortés set out from Cuba to conquer Mexico, against the governor Velázquez’s wishes. ...

142 CONSERVATION GIANT WETA CRICKET New Zealand has many kinds of weta crickets. Fossils have been found that are more than 190 ...

CONSERVATION AND ENDANGERED SPECIES 143 CONTROLLING TRADE Some animals and plants are taken from the wild for their skins and ot ...

144 UNITING THE STATES The Constitution established the federal government and divided its powers among three branches: the exec ...

145 Continents ALMOST ONE-THIRD OF THE SURFACE of Earth is land. There are seven vast pieces of land, called continents that mak ...

146 JAMES IN THE LATE SUMMER OF 1768, a small sailing ship left Plymouth, England, on an expedition to the Pacific Ocean. In cha ...

147 JELLYFISH The sea wasp jellyfish uses its tentacles to sting fish. Tentacles contain venom that is painful to humans and can ...

SHRIMPS AND PRAWNS These little sea creatures are good scavengers. During the day, they dig into the sand and hide. At night the ...

149 CROCODILE SMILE Crocodiles often bask in the sun with their mouths wide open. Blood vessels inside the mouth absorb the sun’ ...

150 SULTAN SALADIN Leader of the Muslim forces, Saladin (1137-93) was a great commander. As sultan of Egypt and Syria, he made E ...

151 EVERY DAY, FACTORIES and homes use up huge amounts of water. For example, an oil refinery uses 10 times as much water as the ...

152 SQUARE DANCING Square dancing is very sociable. Four couples form a square and change partners in a sequence of moves. A cal ...

VOYAGE OF THE BEAGLE On the five-year voyage, the Beagle made many stops, during which Darwin studied plant and animal life, and ...

154 Independence Declaration of THE FOUNDERS The language of the Declaration summed up years of colonial frustration with Britis ...

Lateral line organs along sides of body sense water currents made by prey. VIPERFISH The viperfish is only 12 in (30 cm) long, b ...

156 DEEP-SEA WILDLIFE CONSERVATION Unlike other wildlife areas, such as the rain forests, the deep sea is not in great danger fr ...

157 THE WORD “DEMOCRACY” COMES FROM the ancient Greek words demos, which means “people,” and kratia, which means “power.” Democr ...

158 DEPRESSION OF THE 1930S Amount of sales on the New York Stock Exchange 1929-32. JARROW MARCH In Britain, mass unemployment l ...